UNECE has announced international automobile cybersecurity standards for safe commercialization with the development of the autonomous vehicle industry. Accordingly, the Ministry of Land, Infrastructure and Transport announced domestic automobile cybersecurity guidelines to comply with international standards for free export and import of the domestic automobile industry. However, domestic automobile cybersecurity guidelines have several problems such as institutional cultural differences for electrical product safety management, specificity and depth of cybersecurity standards, and updating domestic guidelines according to the issuance of the latest version of standards. Currently, domestic automakers predict that the commercialization of high-level autonomous vehicles will also be accelerated by accelerating the development and installation of level 4 technology for autonomous vehicles, so the above problems should be solved as soon as possible. Therefore, in order to create an era of commercialization of safe autonomous vehicles, this paper presents more supplemented domestic automobile cybersecurity guidelines by improving problems focusing on the vehicle life cycle. As a result, the international prosperity of the domestic self-driving car industry and the safe driving life of domestic self-driving car consumers can be expected together.